Regular Drywall - Answer--White board
-Most commonly used in homes
-Not resistant to mold or mildew
High Impact Drywall - Answer--Purple
-Moisture and mold resistant
-Paper face is stronger
-Used in areas with a lot of traffic
Paperless Drywall - Answer--Mold and moisture resistant
-Fiberglass backing instead of paper
-Mold grows on paper
Nail Pops - Answer--Happen after 1st heating season
-When a nail or screw is protruding through the drywall
Nail Pop Prevention - Answer--Use shorter nails or screws
-Use dry lumber
-Use steel studs
-Use adhesives to lessen the burden
Drywall Mud/Compounds - Answer--Pre-mix
-Dry powder (hot mix)
-Used to finish/cover drywall joints and corners
Drywall Procedure - Answer--Install ceiling panels first (lids)
-Hang sheets over doors/windows
, -Finish the walls
-Apply mud
-Sand and then primer
NRC - Answer--Noise reduction coefficient
-A single number value ranging from 0.0 to 1.0
-Describes the average sound absorption performance of a material
STC - Answer--Sound transmission class
-Higher the number, the better
-Painting over porous surfaces lowers STC rating
Hard, Flat Surfaces - Answer--Reflect 98% of sound
-Sound absorption depends on thickness
Sealants - Answer--Mis application is the biggest problem
-Bind surfaces and certain materials together
Caulk - Answer--Fill cracks and gaps
-Mis application is the biggest problem
Oil Base Caulk - Answer--Lower cost
-Dries out
-Exterior
-Used on non-porous surfaces
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